Window-screen construction



LSOLISJ .Fully l5, 1924.'

F. A. MOSMAN WINDOW SCREEN CONSTRUCTION Filed Feb. lO, 1922 Patented .July 15, 1924.

1,501,131 PATENT ortica.

FRANKLIN A. MOSMAN, `01'5 CAMBRIDGE, `MASSAQHUASETQS WINDOW-sonnen consfrnoc'rrogrt Application filed `February 10,1922. Serial No.`5,5,4515.

Tp `all whom i tft. may concern.'

'Be tknown that', ERANKLLN A- MQSMAN, a citizen of the United States, residing lat Cambridge, in the county of Middlesex and VState of Massachusetts, have invented certain new and useful Improvements in Win dow-Screen Constructions, of which the fol lowing is a specification.

The invention to be hereinafter described relates to window screens.

'Heretofore considerable diHiculty has been experienced in mounting screens in window frames and removing the same therefrom.

One of the purposes of the present invention, therefore, is to provide a simple, cheap,

durable screen construction whereby the screen may be quickly and easily placed in the window frame or removed therefrom as desired.

Under Asome yconditions it is desirable Athat the screen shall be down opposite ltihenormal position; 0f the lower Window Sash, and nnderother conditions it is desirable that the screen shall he up Opposite the hrmal position of -the upper window sash. An-

other purpose of Tt e invention, therefore, is to provide simple and eicient means whereby the screen may be secured either in its up or down position.

With the aforesaid -and other purposes in view, the character of the invention will ybe best understood. by reference to the following description of one good form thereof Shown ih` the accompanying drawings wherein Figure 1 is a. front elevation `of a win- *dowl kequipped with the screen keonstruction embodying the invention;

" Fig. 2 is a vertical section through the eonstruction shown in Fig. 1;

Fig. 3 on an enlarged scale is a vertical section taken on line'B-S of Fig. 1;`

Fig. on .an enlarged scale is a detail view showing the fulcrum arrangementwfor 'ont ofthescreen guides; and,

' Fig. '5 is a horizontalsection taken on Referring tothe drawings, the illustrated embodimentV of the invention shown therein, comprises a window frame 1' of usual construction, provided at opposite sides thereof with grooves 3 for receiving the lower windo-w'sash 5, and grooves 7 for receiving the up er `window sash 9. lso mounted on the side, members of the Window frame are Suitable guides, h1 the present instance, in the. fermhf thehhtls 11 which may desrahfly 1h@ Stamped frOrh Sheet rhttal- Preferahilytath O f these guides has a length Slightly less than thefhtehthlf the window .fratrie Opening Suitable means may the" .Provided Pivotally t0 111.0111111 the guides Q hithesde. here .ofthe vhdov frame# T0 accomplish this, in AtheJ present hstahce 0f the. ihrs/ htion, screws 1K8 may be entered through elongated slots 15 in the backs ofthe 'channel Shaped strides, Said screws. heine Secured in the side members ofthe. window'frame. Preferably the screws y13 are located somewhat beneath points midway 'between the top and bottom ofthe window frame opening, or in other words, somewhat been the lower horizontal member of the upper Sash and .the OPPQSed horizontal member 0f the lower sash when said saslies are re- Spettively ih their up and dhvh'pestihs- The Channel, guides' may he normally Stcured against rockihgfrhersmehtih tht Whdov frame hy Screws 17 entered thrOu h upper and lower helhsh th'hatks O f t e thahntlfghdes arid' threaded ih th the Side members of the window Yframe.

'When it is desired to swing the guide members out from the window frame, the screws 17 are released from the latter, and then the guides may be grasped and slid upward somewhat as permitted by the elongated slots 15 throu h which the fulcruin screws 13 are entere, and then the guides may be swung from their positionsshown in full lines in Fig. 2, to their positions shown in dottedjlines in said figure. `The preliminary sliding movements ofthe guides permit their lower ends to clear the usual incline 19 and shoulder 21 adjacent the window sill 23. The location of the fulcrum screws 13 somewhat beneath points midway between the upper and lower ends of the window frame opening, permits the guides to swing without hindrance from the lower members of the window sashes. It will he v After the guides have been swung out of the window frame to their positions shown in dotted lines in Fig. 2, th'e'screen frame maybe presented'to the lower open ends of the guides, and then may be slid upward therein until the lower edgevof the screen frame is somewhat above or in registration with the lower ends of the guides. Thereupon, the guides together with the screen may be swung inward,thereby carrying the former back from their positions shown in dotted lines, to their positions shown in Vfull lines in Fig. A2. Then the guides may be lowered somewhat until the lower ends thereof rest on the incline 19 of kthe lower horizontal member of the window frame. This downward movement of the guides is permitted by the elongated slots 15 which receive the fulcrum screws 13. The guides may be secured again in tlieirnormal positions in the screen frame by the screws 17.

The screen may readily slide down to a position opposite that normally occupied by the lower sash, or it may be slid to a position opposite that normally occupied by the upper sash.

Suitable means may, be provided to secure the screen in its up or down position. This means, in the present' instance, comprises latches 29, eachy conveniently in the form of a resilient arm 31 pivotally mounted on a rivet 33 or other suitableelement secured to the innerr flange 35 ofthe guide channel. The free end of the aini 3l may be turned inward to present a locking element 37 desirably tapered and adapted to enter through a lower hole 39er an upper hole 41 in the channel iiange 35. Tf the screen is to be secured inits down position, the latch arm 31 is rocked about the rivet 33 to bring the locking velement' 37 in registration with the' lower hole 39. `Then the sharp locking element 37 may enter through said hole and may be pressed or hammered into one of the side members of the screen frame, the inherent resilience of the arm 31 being such that it tends to maintain the locking element 37 in position to secure the screen against sliding movement in the guides. l

p Tf it is desired to secure the screen in'its .up position, the latch arm 31 is rocked about the rivet 33 until the locking element 37 is brought into registration kwith the upper hole l1 in the iiange 35 of the guide channel. Then the locking element may enter through said hole and may be pressed or hammered into the side member of the screen frame,

`thereby to Vsecure the screen in its up position. When it is desired to unlock the screen `in either its upor down-position, it is merely `necessary lto pullthe latch arm 31- outward against its inherent resilience untilitslocling element clears either the hole 39 or the hole 41. Then the arm may be rocked somewhat so that the locking element engages the outer surface of the channel flange at a point adjacent the hole from which it was withdrawn. This will hold the latch in released position until it is desired again to move the saine into active locking relation with the screen frame. After the first forcing of the latch into the screen frame, the holes thus producedv in the frame act as y permanent apertures for receiving the latch whenever a hole 39 or 41 registers therewith according as the screen is in its down or up position. Obviously other holes may be made in the screen frame to hold it, through the agency of the latch, in any desired intermediate position.

While two latches are illustrated herein applied to both of the guides, it will beunderstood that in some instances a single latch on one of the guides may be employed to lock the screen in its up oiI down position if desired.

Since the latches are located on the inner flanges of the guide channels, they are only accessible from the inner side of the screen, and thus unauthorized persons at the exterior of the screen are prevented from unlocking the screen. The latches are located well up on the screen guides where they cannot readily be tampered with by small'children. By the construction described, the guides and the screen may be securely held in the window frame without liability Vof to manufacture, and it may be quickly andL easily applied to standard window frames.

It will be understood that the invention is not limited to the specific embodiment shown, and that various deviations may be made therefrom without departing from the spirit and scope of the appended claims.

lVhat is claimed is:

1. A window screen construction compris* ing a pair of guides extending substantially the length of the window frame, means for connecting said guides to said frame at points substantially midway in the lengths of said guides constructed and arranged to provide for a longitudinal and a swinging movement of the guidesthat the latter may be lifted and moved into'yfand out of the frame, and a screen slidably mounted in said guides and adapted to be inserted into or 'removed therefrom when the guides are in their out positions.

2. A window screen construction coinpris the guides are seated on the Window sill that the latter may be lifted to swing into and out of the frame, a screen slidably mounted in said guides and adapted to be inserted into or removed therefrom When the guides are in their out positions, and means for securing said guides against swinging movement in said frame.

3. A Window screen construction comprising a pair of guides having a length slightly less than the height ot the window frame opening, said guides having centrally lo- .cated elongated slots therein, fulcrum elements entered through said slots and secured to opposed sides of the Window frame, said guides being susceptible of longitudinal and rocking movements about said fulcruni elements to and from positions Within the frame, and a screen slidably mounted in said guides.

4. The combination with a Window frame of a pair of channel guides, means pivotally connecting said guides to said frame that the guides may swing into, and out of the frame, a screen slidably mounted in said channel guides, and a latch device movable to enter different pairs of registering apertures in the guide and screen Jframe according as the screen is in up or do-Wn position in said guides and lock the screen in such.

position.

5. The combination with a Window frame of a pair of guides, a screen having a trame slidable on said guides at least one of said guides having a pair of spaced apertures through its inner ange, the lower of which is opposite the upper end of the screen when in its down position and the upper of Which is opposite the lower end of the screen when in its up position, and a latch adjust ably mounted on the guide to enter one or the other of said apertures to lock the screen in either position.

FRANKLIN A. MOSMAN. 

